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Cisco Bug: CSCut17914 - ME3600 doesn't respond to unicast ARP req destined to HSRP virtual mac

Last Modified

Jan 31, 2017

Products (1)

  • Cisco ME 3600X Series Ethernet Access Switches

Known Affected Releases

15.4(3)S2.1

Description (partial)

Symptom:
ME3600 doesn't respond to unicast ARP req destined to HSRP virtual mac. However, ME3600 sends ARP reply properly when ARP request is destined to broadcast mac (FF:FF:FF:FF:FF:FF).

Conditions:
Steps to reproduce:

1. Configure SVI Vlan100 and enable HSRP group in SVI vlan100.
2. Configure service instance for the bridge domain 100 in physical port where Ixia is connected.
3. Send ARP request for HSRP virtual IP from Ixia with destination mac address as HSRP virtual mac (unicast). 
4. Observe ME3600 doesn't send ARP reply.
5. Send ARP request for HSRP virtual IP from Ixia with destination mac address as broadcast (FF:FF:FF:FF:FF:FF)
6. Observe ME3600 sends ARP reply properly.
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